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2 Sheets-Sheet 1. J. TAYLER.v

` ROCK AND ORB GRUSHER. ,969. Patented Jan.. 3,1882.

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, (No Model.)

2V R E L V.. A4 m... J.

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BooK AND. om: CRUSHBR.

nTTORNEYy N. PSTERS, Pnnla-Lilhngnvher. washington, nA CA UNITED STATES'v PATENT OFFICE.

Josms Tarrina, or New YORK, N. Y.

ROCK ANDfoREoRusHER.

vs1=Ecrrrca'rrolvr forming part of Letters. Patent No. 251,969, dated January 3, 1882.

i Application filed April 6, 1881. (No model.)

To all whom it may concern:

Be it known that I, Josms TAYLER, of the city ot New York, in the county and State of New York, have invented a new and useful Im provement in Rock and Ore Crushers, of which the following isa full, clear, and accurate description, reference being had to the accom panying drawings,making a part of this specication, in which- Figure lis a side elevation of the machine in workin g condition. Fig. 2 isa sectional side view, showing the jaws'in perpendicular position. Fig. 3 is. a sectional view, in perspective,`of a detached jaw with face-plate in' two sections. Fig. 4 isa perspective `view of the lower section of a face-plate channeled lon gitudinally', as prepared for granulating. YFig. 5 is a side view of thejaws in position when drawn to one side by the extreme throw of the crank, with dotted lines` showing the relative change of position of the serrations or corrugations and hollows and rounds in the two jaws. Fig. 6 is a diagram showing 'the method of laying out the patterns for a pair of'jaws,

so that they will accomplish the purpose sought to be attained by the invention. Fig. 7 is a vertical sectional view of a pair ot' granulating i jaw-faceslike the one shown in Fig. 4 in the positionthey occupy when ready for use.

The same letters represent the same parts in thediferent figures. l

My invention relates to the reduction of rock, ore, or other similar substance by crush"` ure and grinding or rubbing between metallic ing, granulation, and pulverizatiomand seeks to accomplish the object by combinedl press for crushing rock and re by means of iron Y corrugated jaws; butall of them are defective in many respects, and are so constructed as to be uncertain and irregular in their operations, and, when usedgt'or reducing ores to fine powder, are unreliable, not producing uniform results, and causing the machines to clog and otherwise render them impracticable.`

\ lam also `aware that crushersfhave been madewith corrugated jaws suspended at the.

top upon trunnions and moved or swung backward and forward by means of yokes in which the lower end ofthe jaws were confined and allowed to play loosely; but all such machines have failed to accomplish the purpose, and ore subjected to their action has had to be passed through clamps, heavy rollers, or other expensive devices bel'ore theultimate object could be attained.

lTo overcome these defects and combine in one simple machine the crude crushing of the masses of rock, the regular granulation of the fragments, and the complete pulverization of the granules, when desired, 1 have constructed a'machine which can be used for either or all `the purposes named, can be readily adjusted so asxto reduce the material to any desired neness or mesh, can be operated Wl'th much less power than the crushers now in use, and

`easily and cheaply repaired when worn by use so as to be as good as new.

To enable others skilled in the art to make and use my invention, I will proceed to describe the machine and the manner in which I arrive at the desired result.

In the drawings which accompany this specilication, A represents the sides of the framework, supported by the legs A and tied together by the rods a, secured in their places by means of shoulders and nuts a.

If desired, the shoulders may be dispensed with by passing the rods through hollow metallic pipes placed between the two side plates and cnt of a length equal to the distance desired between the sides for the proper ,play of the jaws; or any other ordinary bracing may be employed.

B B represent jaws, ot cast-iron or other proper metal, hung in the frame A A by means of the rods B', which pass through the frame, resting in bearings properlyconstructed therein, at sntlicient distance apart to give the desired opening between the jaws to receive the rock or ore to be operated upon. These jawsv are so constructed that the bearings bymeans of which theyare suspended in the frame are in the upper end of the jaws and in a horizontal line-that is, in aline parallel with the base of the machine-though, if desired,` one jaw may be lengthened above and the bearing for that jaw be arranged higher up than the other,

care being taken that the similarity of the lower portion of the two jaws shall be retained. The lower portion'of each jawis pierced with a hole, through which passes a rod, b, projecting through a slot in the frame on each side of the machine. These rods are tied at the ends by means of the link C, arranged to play backward and forward on the outside of the frame, and held in place by a collar, c, at the end of Vthe rod. The link C is provided with a boxing and a wedgeshape key, e', which is moved up and down and secured in position by means of the screws b', for the purpose of setting the lower ends of the jaws in the desired degree of proximity. l

The jaws are provided with face-plates D, which present a serrated or corrugated surface on the upper portion. 'Ihese serrations or corrugations are made to cross the jaws laterally, the more effectually to en gage the rock or ore and prevent its slipping or being forced up ward by the action of the jaws when in motion. and to hold it in position while being crushed by the grinding-pressure, as seen at-D.

The lower portion ot the surface of the jawface is formed by two curvedprojections, E F, running across the face ot' the jaw, with a corresponding hollow, G, between them, so arranged that when the jaws are in perpendicular position, as seen in Fig. l, the projecting curves at E and those at F will bein contact, or as nearin contact as the setting of the link C will permit, while the corresponding hollows between them will be far enough asunder to leave an open space or pocket between the projeetions above andbelow, asseen in Fig. 2.

The inner surface of the frame A is cut away.

opposite to the opening between the jaws, so as to admit a slide, C', made of cast-iron or other proper metal, which is placed in close proximity to the edge of the jaws and secured in such a manner that it can be removed at pleasure and replaced with a new one when worn or injured.

The face-plates may be cast in onepiece, or may be divided into two pieces, so that one piece may be removed and replaced without disturbing the other.

The'face-plates and side plates used in the crusher are made of chilled iron or steel, so as to eftectually resist the action ot' the rock and ore; but, if desired, they may be constructed of wrought-iron or any other' proper metal.

The face-plates are secured in position by means of bolts e passing throughthe jaws, their heads being embedded in flanged grooves in the face-plates and made permanent by tillingin with Babbitt metal or other suitable substance, and secured by nuts on the outside of thejaw. Y

To prevent the strain which would come upon the bolts e by the peculiar action of the jaws, the face-plates are constructed with a ange on the back,which is titted into a groove or channel cast in thejaw extending laterally across the jaw, as seen at g.

The jawsare operated by means of a crankshaft, H, havingbearings in the frame and provided with balance-wheels H and pulley h, the crank being in the center between the sidesof the frame and connected with the jaws by means ot' a pitman, I, one end .of which is secured by a clamp, J, around the crank of the shaft and the other is received in a mortise or recess, K, made in the jaw behind and around the hole through which the rod b passes and connected to the jaw by passing the rod b through the hole in thejaw and through a corresponding. hole or clamp, L, in the end of the pitman.

To secure a proper .configuration of faceplate I place the jaw-patterns in position as hung upon their rods B and tied at the bottom with the rods b, and made of such thickness that the two inner faces Awill come together in contact from the top to the bottom. I then mark oft a space each sidefof the center line at the top equal to the throw of the crank for an opening to receive the material to be crushed. I then draw a line at right angles with the center perpendicular line passing through the centers of the holes for receiving the rods b, and divide the center perpendicular line from this point upward and downwardV into-spaces equal to the throw ot` the crank, by parallel lines at right angles with the center perpendicular line. I thenstrike lan arc of circle having a radius equal tothe distance between the rods on which the jaws are suspended and the rods which serve to connect the jaws at the bottom, the center ofthe circle being on the parallel line which passes through the center of the rods which connect the bottom of the jaws, and the periphery ot' the arc touching the center perpendicular line. arc I extend above and below the line on which it is drawn a distance equal to the throw of the crank to be used in the machine. lI then draw another arc precisely like the one described on the second parallel line below, the lower extremity of this arc corresponding with the lower extremity of the jaw; or if the jaw is extended below I add a corresponding hollow. l then reverse the` dividers, making the center on the other side of the perpendicular line and on the parallel line interveningbetween the two arcs already drawn, and strike another arc between the two, connecting the lines above and below into one ogee-line, making a hollow between the two rounds, each hollow and each round being equal in extent to the throw of the crank. I then determine the depth ofthe depression which I desire to make on the surface ot' the face-plates by means of serrations or corrugations, and proceed to ser- ThisV IOO IOS

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rate or curve the lines above the upper round and hollow, which are to mark the opening or mouth of the jaws, accordingly making each section of the line equal to the throw'of thev crank, and making the points or projections of the serrations or corrugations on the two y jaws on alternate parallel lines, so that as the,

jaws approach each `other the` projections on one jaw will be opposed to the depressions on the other. The'serrated or curved line is made continuous with the upper arc, and the jawpatterns are then formed in accordance with the configuration indicated by the lines made as above set forth. The method of arriving at this coniiguration is fully explained by the diagram in the drawing Fig. 6.

. When `the jaws so constructed are placed in the crusher ready for use and hang perpendicular from the rods B. the two rounded projections, which represent arcs of circles or segments of cylinders or rolls across the face of the jaws, are in contact, and the hollow between them forms an elliptical chamber or pocketd, closed above and below bythe rounds, while the upper ends of the jaws are separated by a distance equal to the stroke of the crank when in operation, which distance diminishes downward until the jaws come in contact at the upper rounds opposite the rods b.

I do not confine myself to this exact contig- `uration of jaw, as the width and depth of the serrations or corrugations may be varied to suit the kind of ore` or rock to be crushed, or

the nature of the result sought, and the radius of the circle on which the arcsare struck may be varied also tosuit the work to be accomplished, so long as care is taken to make the hollows and rounds arcs ot' circles and o'f uniform size and extent, so that the rounds will 'fit into the hollows and leave no opening for the escape of the material until it has reached the desired tineness, and will notjam so as to obstructtheoperationofthe machine. Neither do I conne myself to two rounds and hollows on a jaw, as any greater or less number may vbe used if properly constructed; nor to any specific width for the opening ot' the jaws at the top, as such opening may bemade of any desired width at the top by so constructing the pattern, provided the jaws come in' contact at the rounds on the lower portions.

In operation the machine, being ready for use,is adjusted by moving the wedges c up and down, as may be required, by means of the screws b. which brings the rounds of the faceplates E E and F F into the desired proximity, according to the tinenessdesired, and retains them there throughout the entire stroke of the crank. The power being applied by means of the. pulley and the crusher set in motion, the lower ends of the jaws are moved backward and forward by the action of the crank-shaft, thus swinging the jaws, and as each has its own independent center of revolution the faces oscillate backward and forward with a grinding corresponding hollow, and lin-ally delivered fromthe machine at the bottom of the jaws in the desired condition. i

It will be seen that each round on the Vsurface ofthe face-plate has an upward and downward motion at each stroke of thecrank, grinding the material against the hollow wall of the other face-plate, from which there is no escupe, thus making the action of these rounds and hollows equal at least to two pairs of rollers in eiciency, and in practice they seem to be far superior to two pairs of rollers. y Heretoforein the use of crushing-machines great difficulty has been experienced in the tendency. to grind much of the stone to dust, while thin scales of considerable size would also pass through without crushing. This difficulty is eifectually overcome by the longitudinally-serratedrounds and hollows shown at Figs. 4 and 7, and used only for crushing and granulating and through which no thin scale can pass unbroken.

What I claim as new, and seek to secure by Letters Patent, is-

1. In a rock and ore crushing machine, a pair of serrated or corrugated oscillating' jaws separated at the top, each suspended on an independent bearing and provided with one or IOO more rounds, with corresponding hollows forming equal arcs of circles drawn on equal radii running laterallyacross the face ot' the jaws, as shown and described..

2. In a rock and ore crushing machine, oscillating jaws provided with face-plates in two sections, one of which sections on each jaw is serrated or corrugated andthe other made with hollows and rounds of equal extent, and

consisting of equal arcs of circles drawn on equal radii, as shown and described.

3. In a rock and ore crushing machine,jaws' IIS lower extremities with one or more hollowsand i rounds formed of equal arcs of circles drawn on equal radii extending laterally across the jaws, and serrated or corrugated longitudinally, with the projections on one face opposed to the depressions on the other, as herein shown and described.

'5. In a rock-and ore crushing machine, the combination of two oscillatingjaws suspended apart at the top on independent bearings, and a link `provided with boxes, sliding wedges,

and set-screws, for the-purpose of adjusting and maintaining in position the lower ends of the jaws, as herein shown and described.

6. In a rock and ore crushing machine, the

combination of a metallic traine with a pairof oscillatingjaws suspended therein apart at the top, on indepcndcn t bearingshnving tace-plates attached by flanges, bolts, and screws, serrated ley, and balance-wheels, as herein shown and described.'

7. In a rock and ore crushing machine, a pair of serrated or corrugated jaws diverging from a given point upward in a hopper-like form and from the same point downward, having faces consisting' of a series of hollows and rounds composed of equal arcs ot" circles drawn on equal radii and equal in extent to the throw of the crank, having the projections of thel rounds on 'the two faces parallel with each other, as herein shown and described J OSIAS TAYLER.

Witnesses:

ARTHUR S. H. POWER, SAM. FRD. SMITH. 

